and house on that controversial investigation about to be reported to congress on what went wrong in benghazi. that's one big thing. she is -- she had a concussion, we are told. she fainted after being dehydrated from a result of that stomach flu we were told about last monday when unexpectedly secretary clinton postponed a trip to places in the region for suggestions on the syrian opposition. in her place, veteran diplomat deputy secretary william burns went in hjertstedt. she's just come back from a rip during which she and head of policy planning and other top officials all got sick. so that was hornlgly postponed from monday to tuesday. then clear she was not going to be well enough in turn they -- the trip would be taken instead by her deputy. it is not clear when she actually fell and how long she has been suffering from the concussion. it is very, very difficult to get information on her actual health because they are being very, very privilege at about it. >> butter with to understand that she's at home recovering right now. andrea mitchell, thank you so much. if there is an update do